* {
    margin: 0;
    padding: 0;
  }
  a{
    text-decoration: none;
  }
  ul{
    list-style: none;
  }
  li{
    color: black;
  }
  li :hover{
    color: red;
  }
  .top{
    width: 100vw;
    height: 3vw;
    background-color: #FFFFFF;
    border: 1px solid #e8efef;
   
  }
  .top-1{
    width: 50%;
    height: 100%;
    background-color: #FFFFFF;
    margin: auto;
   
  }
  .top-2{
    float: left;
    width: 10%;
    height: 100%;
    background-color: #FFFFFF;
  }
  .top-2 img{
    margin-top: 15px;
  }
  .xf,
  li{
    float: left;
  }
  
  .xf li{
    line-height: 3.8vw;
    width: 4vw;
    margin-left: 30px;
  }
  .top-4{
  width: 100px;
  height: 100%;
  background-color:#FFFFFF;
  float: left;
  margin-left: 200px;
  
  }
  .top-5{
    width: 40px;
    height: 100%;
    float: left;
  }
  .top-5 img{
    margin-top: 20px;
  }
  .xf-1,
  li{
    float: left;
  }
  
  .input-1{
    width: 40px;
    height: 20px;
    margin-top: 20px;
  border: 1px solid red;
  color: red;
  text-align: center;
  font-size: 16px;
    float: left;
    margin-left: 10px;
    border-radius: 3px;
  }
  .input-1:hover{
    cursor: pointer;
  }
  